Chapter 18.140
TOWNHOUSE (TN) SUBDIVISION
Sections:
18.140.030 Intensity and density incentives.
18.140.050 Additional design standards.
18.140.010 Intent.
The townhouse subdivision type is intended to provide a development option with the following features:
(A) Land use: 100 percent residential, in the form of townhouses.
(B) Applicability: residential subdivisions involving townhouses including all sizes that may or may not require new streets.
(C) Pedestrian Network.
(1) Safe, efficient, and highly accessible pedestrian circulation within the subdivision.
(2) Safe, efficient, and easy access to perimeter streets.
(D) Vehicular Network.
(1) Creation of grid-like street and alley system that allows for maximum connectivity to adjacent neighborhoods and nonresidential activity centers.
(2) Frequent use of alleys and garage access via alleys.
(3) Short blocks.
(4) Small radius corners.
(E) Site Feature Preservation.
(1) Strive to save existing quality tree stands. [Ord. 1746-2023; Ord. 1352-2010; Ord. 1286-2008. UDO § 6.12.]
18.140.020 Prerequisites.
(A) Base zoning: R4 and R5.
(B) Minimum parent tract: no minimum.
(C) Maximum parent tract: no maximum.
(D) Special Qualifications.
(1) Subdivision shall be designed around pedestrian-scale streetscape featuring narrow street profiles, on-street parking, building forward orientation, short blocks, and decorative street lighting. [Ord. 1746-2023; Ord. 1352-2010; Ord. 1286-2008. UDO § 6.13.]
18.140.030 Intensity and density incentives.
The intensity and density bonus listed in the table below preempts the corresponding development standards listed for each zoning district in Division II of this title, Zoning Districts, when a subdivision is designed and implemented using the anti-monotony standard in Chapter 18.156 AMC, Design Standards.
Only the zoning districts shown in the table below are applicable for an intensity and/or density bonus.
|
|
Zoning District |
|
|---|---|---|
|
R4 |
R5 |
|
|
Lot Standards |
||
|
Min. Lot Area |
2,200 sq. ft. |
2,200 sq. ft. |
|
Min. Average Lot Area |
2,600 sq. ft. |
2,600 sq. ft. |
|
Min. Lot Width |
20 ft. |
20 ft. |
|
Min. Average Lot Width |
26 ft. |
26 ft. |
|
Setback Standards |
||
|
Min. Front Setback |
24 ft. |
20 ft. |
|
Min. Side Setback |
0 ft. |
0 ft. |
|
Min. Rear Setback |
20 ft. |
20 ft. |
|
Min. Building Separation* |
30 ft. |
30 ft. |
|
Other Standards |
||
|
Max. Lot Coverage |
50% |
70% |
|
Min. Dwelling Unit Size |
1,200 sq. ft. |
1,000 sq. ft. |
|
Min. Average Dwelling Unit Size |
1,400 sq. ft. |
1,200 sq. ft. |
|
Maximum Density |
7 du/acre |
9 du/acre |
* Separation from another block of townhouses, not each individual unit.
[Ord. 1746-2023; Ord. 1352-2010; Ord. 1286-2008. UDO § 6.14.]
18.140.040 Standards.
(A) Required open space: 20 percent.
(B) Minimum perimeter landscaping: 25 feet along perimeter streets; 10 feet along all other perimeters; zero feet if abutting another TN or a TD subdivision.
(C) Minimum block length: 200 feet.
(D) Maximum block length: 660 feet.
(E) Average block length: between 300 and 500 feet.
(F) Cul-de-sac length: cul-de-sacs not permitted.
(G) Minimum ROW on local streets: 60 feet.
(H) Design speed: 20 to 30 miles per hour.
(I) Minimum street width: 38 feet.
(J) Curb: vertical curb required.
(K) On-street parking: required on both sides of street.
(L) Minimum tree plot width: five feet.
(M) Minimum Sidewalk/Sidepath Width.
(1) Five-foot sidewalks/sidepaths along both sides of streets. If the sidewalk/sidepath is curb-faced, the sidewalk width shall be six feet.
(2) All joints shall be saw-cut. [Ord. 1746-2023; Ord. 1352-2010; Ord. 1286-2008. UDO § 6.15.]
18.140.050 Additional design standards.
(A) Development name: AMC 18.156.040.
(B) Dedication of public improvement: AMC 18.156.050.
(C) Easement: AMC 18.156.060.
(D) Entryway feature: AMC 18.156.070.
(E) Erosion control: AMC 18.156.080.
(F) Floodplain: AMC 18.156.090.
(G) Incentive: AMC 18.156.100.
(H) Lot establishment: AMC 18.156.120.
(I) Monument and marker: AMC 18.156.150.
(J) Open space: AMC 18.156.160.
(K) Owners’ association: AMC 18.156.170.
(L) Pedestrian network: AMC 18.156.180.
(M) Perimeter landscaping: AMC 18.156.190.
(N) Prerequisite standards: AMC 18.156.200.
(O) Stormwater standards: AMC 18.156.210.
(P) Street and access: AMC 18.156.220, 18.156.230, 18.156.240, 18.156.250, 18.156.270 and 18.156.290.
(Q) Street lighting: AMC 18.156.310.
(R) Surety: AMC 18.156.330.
(S) Utility standards: AMC 18.156.340. [Ord. 1746-2023; Ord. 1352-2010; Ord. 1286-2008. UDO § 6.15.]